| 摘要 |
PROBLEM TO BE SOLVED: To simply set various lighted regions, with all operational data adapted to the shapes of bodies to be lit, to a control system, by equipping plural shading plates, wherein the respective shading plates are approachable from the optical axis of a light source means, and rotatably provided in a surface crossing the optical axis on a base mount. SOLUTION: In a hanging device 5, respective side surfaces, to which a tubular body 21 is faced, are rotatably fitted in a B direction via a spindle 51, to respective ends. Light from a light source means 2 is demarcated by a lighted region demarcating means 4 to be made in focus by an adjusting means 23, and a beam is radiated from a lens means 3 to e.g. a wall to illuminate the specific portion of the wall as a rectangular area spot. The shape of the area spot irradiated to the wall can be simply changed in accordance with the various shapes of bodies to be illuminated, by loosening the threaded engagement of a screw 39 with a nut 40 to make the respective shading plates near/part in appropriate directions, also rotate appropriately. |
